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数字微波无线电发射系统使用设备的测量方法.第2部分:陆地无线电中继系统的测量方法.第6节:保护开关
Methods of measurement for equipment used in digital microwave radio transmission systems. Part 2 : measurements on terrestrial radio-relay systems. Section 6 : protection switching.
参考页数：23P.;A4
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数字微波无线电发射系统使用设备的测量方法.第2部分:陆地无线电中继系统的测量.第5节:数字信号处理分系统
Methods of measurement for equipment used in digital microwave radio transmission systems. Part 2 : measurements on terrestrial radio-relay systems. Section 5 : digital signal processing sub-system.
参考页数：24P.;A4
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地面无线中继线路(TETRA).声音加数据(V+D).第10部分:补充业务段1.第4分部分:呼叫转接(CF)
Terrestrial Trunked Radio (TETRA) - Voice plus data (V+D) - Part 10 : supplementary services stage 1 - Sub-part 4 : Call Forwarding (CF) (V1.3.1).
参考页数：34P.;A4
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地面无线中继系统(TETRA).音频加数据(V+D).第10部分:补充业务段1.第21分部分:环境监听(AL)
Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 10 : supplementary services stage 1 - Sub-part 21 : Ambience Listening (AL) (V1.2.1).
参考页数：21P.;A4
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移动通信设备节能参数和测试方法 基站
Energy efficiency metrics and measurement method for mobile communication equipment—Base station
价格：￥0.00
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卫星紧急无线电示位标性能要求
Technical requirements for satellite emergency position-indicating radio beacons
价格：￥0.00
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数字微波通信系统进网技术要求
Networking specifications for digital radio systems
价格：￥0.00
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微波和超短波通信设备辐射安全要求
Safety requirements of radiation for microwave and ultrashort wave communication equipment
价格：￥0.00
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长距离地面模拟微波接力系统彩色电视解调机(一路电视一路伴音)技术条件
Specifications for colour TV demodulation equipment(1TV+1 sound program)--Used in long-haul terrestrial analog radio-relay systems
价格：￥0.00
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长距离地面模拟微波接力系统 彩色电视调制机(一路电视一路伴音)技术条件
Specifications for colour TV modulation equipment(1TV+1 sound program)--Used in long-haul terestrial analog radio-relay systems
价格：￥0.00
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